Transmission-gear.



Isa mm a sums-sum 1.

PATENTED NOV. 26, 1907.

A. P. BOYER.

TRANSMISSION GEAR urmourox IILED APR.1.1907.

NORRIS PETERS CO-, WASHINGTON, D, C.

Witnesses:

PATENTED NOV. 26, 1907.

A. P. BOYER. TRANSMISSION GEAR. APPLIOATION FILED 2221,1907.

3 SHEETS-SHEET 3.

Witnesses n45. wjms PETERS co WASHINGYON. D. c.

To all whom it may concern." Be it known that I, ALLEN'P. BOYER, a citizen of'the United=States,residing-at the city of Goshen, county of Elkhart, State of Indiana, have invented certain new and useful Improvements in-Transmission-Gears, of

which the following is-a specification.

This invention relates to improvements in j variable speed; and reversing .transmission gears. a 2; I.

The main objects of this invention are, first, to'pro yid'ean improved variable speed and reversing'transmission device, having friction ears,-in which the strain on; the gears an bearings is balanced and reduced .to a minimum. Second, to provide an improved variable speed transmission device of the friction gear type, having a minimum amount-of sliding friction of the gearsupon each other. 'Third,to provide an improved variable-speed: transmission device of the friction'gear' type, ini-which'the power is ef fectivelydelive'reditothe driving axle of a direction. Fourth, .to-provide an improved;

inay be made comparatively light, and, at the same time, one which is capable of trans 'iiiittingfheavy loads and withstanding great strain.

*Furtlier-fobjectsand objects relating tod'etailsofcbnstructio'n'; will definitely-appear f om the detailed description to follow; 5

acconiplishnthe objects of my :invention by--.-theldyicesjfand means described in the following-specification? The invention'is'"clarly defined and point ed out in the claims =3 A structure embodying the features of my f'inven'tion'is clearly illustrated in the accompany'in'g rawing, forming a part off this specification,- in which,

Figure 1 is a detail plan of a structure embodyin the features of my invention. Fig. 2 is a etail longitudinal section taken on a line corresponding to line 2"Z of Fig, 1. Fig. 3 is an enlarged detail longitudinal section taken on a line corresponding to line 3- 3 of Fig. 1, the gear shaft 7 being shown in full lines. Fig. 4 is an enlarged detaililongitudinal section taken on a line corresponding to line 44 of Fi 1, the driving shaft 37 1 belng shown in full 'nes. Fig.* 5 is-an enlarged-transverse section taken 'on a line'jcorresponding to line 5.'"5 ofFigi'l, showing the. ""'-ails for adjusting the driven shafts UN TED I 4 i AILLENIP. Borne, oFcosHEN, INDIANA.

Specification of Letters iatent. Application filedApril 1.1907. swam. 365.707.

similarnumerals of reference-refer ,parts throughout the several views a motorvjehicle fordfiiing the vehicle in either v 'are arranged in suitable bearingsprovided therefor in the yokes 3, the yokes bein 'ar 5 variable speedtransrn'ission device, which; I

ranged transversely ofthe yoke 3; see 7 igs'. I

The gear shafts 7, are

, iriinnsicrssion-ennn.

19. Fig. 6 is an enlarged detail section, taken'on a line corresponding to line 6."6 'of 1 Fig.' 1, showing the details of the'reversing mechanism. Fig. 7 is an enlarged detail "see-' tion" taken on a line correspondingto' 77 of Fig. 1., showing the locking means for the reversing mechanism. Fig. S ta enlarged detail section taken on a line-corresponding to line 88 of Fig. 7. Y

In the drawin the' sectional views taken looking in t e direction of the littl rows at the 'ends of the'section lines','and to similar 'Referring to the drawing, l'repr ents frame of a vehicle body, and 2-th'e' rea a of a motor vehicle, the same'being'madefup of tubular sections connected byayO'keH The axle shafts 4 are arranged in the tubifl sections 2', the wheels 5 bein secured to t shafts. On the inner ends of theaxle shafts are beveled ears 6. 'Arranged transver'sely pair of gear shafts 7. QThese gear shafts 2and3.

12 into 'mesh with the, gears 6 on the axle shafts-a The gears 12 are secured to the 's y-means of the collar-like clutch m mbers 9, which are splined upon the sleeves; see Fig. 3.

The clutch members 9 are provided with ratchet teeth, as are also the hubs ofthe gears 12, the teeth being held'yieldingly in engagement by means of the coiled springs .10. By this connection, thegears are allowed to slip and thereby prevent skidding of the wheels in turning the vehicle. The sleeves 8 are connected to be shifted simultaneously in 'opposite'directions bymea'rs of the pivoted lever 14, the lever being forked .to 'engagethe annular grooves 11 in the -sleeves. The lever 14 is mounted on the centrally-arranged pivot or rock. shaft 13,

the-link Qor rod 16.

-w'hih is operated through the arm lfiand H connected by combinationuniversal and slipcouplings 17 to the *driven shaftsf19If-1 .These driven shafts are eccentrically arranged. "in the adjustable Patented Nov. 26, r907. I

of the axles afts and between thefgears 6 'is bearings 20, supported on the cross-piece 18 of the body frame.

The bearings 20 are provided with upwardly-projecting arms 21, which are connected by means of the links 22, 'so that they are actuated together. These links are connected by the crank'levers 23 to the actuating rod or link 24% I provide the driven of friction gears, as 30, 31 and 32, the gears being of different diameters. The driving shaft 37 is provided with a plurality of friction gears, 27, 28 and 29, which are adapted to be brought into drivingengagement with the gears 32, 31 and 30, respectively, of the driven shafts. The gears 27, 28 and 29 are preferably formed integral and are splined u on the driving shaft 37. These gears are adjusted by means of the rock shaft 25, having a forked arm 26 thereon arranged to en ga e the hub of these gears, which is pro' virfed with a suitable annular groove for the purpose. The rock shaft 25 is actuated by means of the operating rod or link 33, which is connected to an arm 34 on the rock shaft.

When it is desired to vary the driving speed, the driven shafts are moved outwardly through the mechanism described to disenga e the gears. The gears on the driving sha t may then be adjusted thereon to bring the desired set into position, and the driven shafts adjustedto cause the same to engage. It is evident that the gears on the driven shafts might be mounted to be adjusted thereon instead of adjusting the gears on the driving shaft to bring them into prgper position.

he reversing mechanism is accomplished through the mechanism described. In order to prevent the reversing while the gears are in riving engagement, one of the links 22 is provided with a stop 37 adapted to engage suitable notches 36 in the operating link' 16 for the reversing mechanism. When the driven shafts are in their inner position, or in the position to bring the gears into driving engagement, this stop engages the one or the other of the notches 36, thereby effectively lockin the reversing mechanism. The links 16 and 22 are arranged transversely of suitable slots provided therefor in the bracket 35, so that they are effectively supported in their engaging position.

By thus arranging the parts, I secure a variable speed and reversing mechanism having friction gears, in which the strain u on the driving and transmission shaft is rediiced to a minimum; also a transmission device which is ca able of driving in either direction with equa facility, the structure illustrated having three speeds. It is evident that the number of speeds could be increased by increasing the number of the gears.

I have illustrated a simple form of adjustable bearing, but it is evident that any suit shafts with a plurality able form might be used in this connection. By arranging the parts as I have illustrated, I obtain a friction transmission device in which there is no friction other than is necessary to secure the transmission of the power. My improved transmission device is simple in construction and may be made of comparatively light material, and, at the same time, possess sufficient strength to withstand all ordinary strain.

I have illustrated and described my improved transmission and reversing gear in detail in the form preferred by me on account of its structuralsimplicity and economy- I am aware, however, that it is capable of very great variation in structural details without departing from my invention, and I desire to be understood as claiming the same specifically as illustrated as well as broadly.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. The combination with the axle shafts, of gears thereon; a pair of gear shafts arranged transversely of said axle shafts; sleeves splined upon said gear shafts; pairs of gears'revolubly mounted on said sleeves adapted to alternately engage said axle gears as said sleeves are shifted; pairs of ratchet clutch members through which said gears are connected to sald sleeves, splined thereon; springs for holding said clutch members yieldingly in engagement with said gears; a pivoted lever connected to said sleeves for simultaneously shifting them in opposite di- 'rectlons, whereby the desired gears thereon are brought into mesh with said axle gears;

a shifting link for said lever; a driving shaft; a pair of driven shafts arranged one at each side of said driving shaft and parallel thereto;

combination universal and slip joints for connecting saidfdriven shafts to said gear shafts; adjustable earings for said driven shafts; connecting links for said bearings whereby they are adjusted in unison to throw them to- 1 10 ward or from said driving shaft; a stop on one of the said connecting links for said adjustable bearings arranged to engage the operating link for said sleeve shifting lever; a plurality of friction gears of different diameters splined upon said drivin shaft; means for shifting said gears on saic driving shaft; and a plurality of gears of different diameters on said driven shafts, adapted to be brought into driving engagementwith said gears on said driving shaft.

2. The combination with the axle shafts, of gears thereon; a pair of gear shafts arranged transversely of said axle shafts;

sleeves splined upon said gear shafts; pairs of gears revolubly mounted on said sleeves adapted to alternately engage said axle gears as said sleeves are shifted; pairs of ratchet clutch members through which said gears are connected to said sleeves, splined thereon;

springs for holding said clutch membersyieldingly in engagement with said gears; a' driving shaft; a pair of driven shafts arranged one at each side of said driving shaft and parallel thereto; combination universal'and slip joints for connecting said driven shafts to said gear shafts; adjustable. bearings for said driven shafts; connecting links for said bearings, whereby they are adjusted in unison to throw them toward or from said driving shaft; a plurality of friction gears of different diameters splined upon said driving shaft; means for shifting said ears on said driving shaft; and a plurality 0 gears of different diameters on said driven shafts, adapted to be brought into driving engagement with said gears on said driving shaft.

3. The combination with the axle shafts, of gears thereon; a pair of gear shafts arranged transversely of said axle shafts; sleeves splined upon said gear shafts; pairs of gears revolubly mounted on said sleeves adapted .to .alternately engage said axle gears .as 'said sleeves are'shifted; airs of ratchet clutch members through which said gears are connected to said sleeves, splined thereon; springs for holding said clutch members yieldingly in engagement with said gears; a pivoted lever connected to said sleeves forsimultaneously shifting them in opposite directions, whereby the desired gears thereon are brought into mesh with said axlegears; ashiftinglink-forsaidlever; a driving shaft a pair of driven shafts'arranged one at each side of said driving shaft and parallel thereto; connections for said driven shafts to said gear shafts; adjustable bearings for said driven shafts; connecting links for said bearings, whereby they are adjusted in unison to throw them toward or from said driving shaft; a stop on one of the said connecting links for said adjustable bearings to engage the operating link for said sleeve shifting lever; aplurality of friction gears of different diameters splined u on said driving shaft means for shifting sai gears on said driving shaft; and a plurality of gears of different diameters on said driven shafts, adapted to be brought into driving engagement with said gears on said driving shaft.

4. The combination with the axle shafts, of gears thereon; a pair of gear shafts arranged transversely of said axle shafts; sleeves splined uponsaid gear -shafts pairs of gears revolubly mounted on said sleeve adapted to alternately engage said axle gears as said sleeves are shifted; pairs of ratchet clutch members through which said gears are connected to said sleeves, splined thereon; springs for holding said clutch members yieldingly in engagement with said gears; a

driving shaft; a pair of driven shafts ar-,

ranged one at each side of said driving shaft and parallel thereto; connections for said driven shafts to said gear shafts; adjustable jaw ease bearings for said driven shafts; connecting links for said bearings, whereby they are adjusted in unison to throw them toward or from said driving shaft; a plurality of friction gears of different diameters splined upon said driving shaft; means for shifting said gears on said driving shaft; and a plurality of gears of difierent diameters on said driven shafts, adapted to be brought into driving shaft.

5. The combination with the axle shafts, of gears thereon; a pair of gear shafts arranged transversely of said axle shafts; sleeves splined upon said gear shafts; pairs of gears on said sleeves adapted to alternately shifted; a pivoted lever connected to said sleeves for simultaneously shifting them in opposite directions, whereby the desired gears thereon are brought into mesh with said axle gears; a shifting link for said lever; a driving shaft; a pair of driven shafts arranged one at each side of said driving shaft and parallel thereto; combination universal and slip joints for connecting said driven shafts to said gear shafts; adjustable bearings for said driven shafts; connecting links for said bearings, whereby they are adjusted in unison to throw them toward or from said driving shaft; a stop on one of the said connecting links for said adjustable bearings arranged to engage the operating link for said sleeve shifting lever; a pluralityof friction gears of different diameters splined upon said driving shaft; means for shifting said gears on said driving shaft; and a plurality of gears of different diameters on-said driven shafts, adapted to be brought into driving engage ment with said gears on said driving shaft.

6. The combination with the axle shafts, of gears thereon; a pair of gear shafts arranged transversely of said axle shafts; sleeves splined upon said gear shafts; pairs of gears on said sleeves adapted to alternately engage said axle gears as said sleeves are shifted; a driving shaft; a pair of driven shafts arranged one at each side of said driving shaft and parallel thereto; combination universal and slip joints for connecting said driven shafts to said gear shafts; adjustable bearings for said driven shafts; connecting links for said bearings, whereby they are adjusted in unison to throw them toward or from said driving shaft; a plurality of friction gears of different-diameters splined upon said driving shaft; means for shifting said gears on'said driving shaft; and a plurality of gears of different diameters on said driven shafts, adapted to be brought into driving engagement with said gears on said driving shaft.

7. The combination with the axle shafts,

engagement with said gears on said drivinggl I engage said axle gears as said sleeves are of gears thereon; a pair of gear shafts arranged transversely of said axle shafts;

rality of I side of saiddri ving shafg and parallel thereto I sleeves splined upon said gear shafts; pairs of gears on said sleevesadapted to alternately engage said 'axle gears as said sleeves are shifted; a pivoted lever connected to said "sleeves for simultaneously shifting them in opposite directions, whereby -the desired gears thereon are brought into mesh with said axle gears; a shifting link for said lever; a driving shaft; a pair of driven shafts arranged one at each side of said driving shaft and parallel thereto; connections for said driven shafts to said gearfshafts adjustable A bearings for said driven shafts; connecting '.links 'for sald bearings, whereby they are adjusted in unison to throw them toward or from-said driving shaft; a stop on one of the said. connecting links "for" said adjustable bearings arranged to enga e the operating link for said'slee ge shifting ever; a plurality of friction gears of'difierent'diameters splined upon saiddriving shaft; means for shifting said-gearson' saiddriving shaft; and a plugears of different'diaineters on said driven shafts;' adapted to be-brought into drivingengagementgwith said 'gears on said I driving shaft.

' 8. The combination 'with the axle shafts,

of gears thereon; a pairof gear:;shafts arranged transversely:.of said axle shafts; vsleeves splined upon said gear shafts; pairs 'Of' gearsf on sald sleeves adapted to alter;

n'ately e'ngage -said axlege'ars as said sleeves are shifte a driving-shaft; a pair of driven shafts arranged one at each 'side of'said drivof gears thereon; -a pair of gear shafts arranged transverselyof said axle shafts; sleeves splined upon said gear shafts; pairs of gears revolubly mounted on said sleeves adaptedto alternately-engage said axle gears as'said sleeves are shifted; pairs of ratchet clutch members through which said gears are connected to said sleeves; splined thereon;

springs for holding said clutch members yieldingly in engagement with said gears; a pivoted lever connected to said sleeves for simultaneously shifting themin opposite directions, whereby the desired gears thereon are broughtinto mesh with said axle gears; a shifting-link for said lever; adriving shaft; a pair of driven shafts arranged one at each.

connections for said driven shafts to said gear shafts; a plurality of friction gears ofdifferent diameters on said driving shaft ;'a plurality of gears of "diflerent diameters .on

said driven shafts; and means for connecting 7o or disconnecting said gears on said driving and driven shafts adapted to lock said shifting link when the gears are connected.

10. The combination with the axle shafts, of gears thereon; a pair of gear shafts arranged transversely of said axle shafts; sleeves splined upon said gear shafts; pairs of gears revolubly mounted on said sleevesadapted to alternately engage said axle gears as said sleeves-are shifted; a pivoted '1 a lever connected to said sleeves'for simul-i taneously shifting them in opposite direct1ons, whereby the desired gears thereon are brought into mesh with said axle gears; a "1 1- shifting link for said lever; a driving shaft;-a

pair of driven shaftsarranged oneat each side of said driving shaft and parallel thereto; connections for said driven shafts to said gear shafts; a plurality of friction gears ofi'dif-QQ ferent diameters on said driving shaft; a'plu 'ei) rality of gears of different diameters onsaid driven shafts; and means for connecting or disconnecting said-gears on said drivi and driven shafts adapted to lock said-shifting link when the gears are connected;

11. The combination with the axle shafts,

of gears thereon; a pair of-gear shafts er ranged transversely of said axle shafts sleeves splined upon said gear shafts; pairs of gears revolubly mounted on said sleeves adapted to alternately engage said-axle gears as said sleeves are shifted; pairs of ratchet clutch members throu h which said gears are connected to sai sleeves, splined thereon;

springs for holding said clutch members yieldingly in engagement 'With said gears;

means for simultaneously shifting said sleeves in opposite directions for reversing said axle shafts; a driving shaft; driving con nections therefor to said gear -shafts; and 11o means for connecting or disconnecting-said 7 driving connections adapted to lock said shifting mechanism for said sleeves on said gear shafts when the shafts are connected.

12. The combination with the axle shafts, 11 5 of gears thereon; apair of gear shafts arranged transversely of said axle shafts; sleeves splined upon said gear shafts; pairs of gears revolubly mounted on said-sleeves adapted to alternately engage said axle gears as said sleeves are shifted; means for simultaneously shifting said sleeves in opposite" directions for reversing said axle shafts; adriving shaft driving connections therefor to said gear shafts; and means for connecting or disconnecting said-driving connections adapted to lock said-shifting mechanism for said sleeves on said gear shafts when the shaftsl are coniiected; r

:13. #Flhe combination with the axle shafts,

- of gears thereon; a pair of (gear shafts arranged transversely of sai axle shafts; sleeves splined upon said gear shafts; pairs of gears revolubly mounted on said sleeves 5 adapted to alternately engage said axle gears as said sleeves are shifted; airs of ratchet clutch members throu h w 'chsaid gears are connected to said s eeves, splined thereon; springs for holding said clutch members y'ieldlngly in engagement with said gears;

' means for simultaneously shifting said sleeves in op osite directions for reversing said axle sha s; and driving connections for said gear shafts.

14. The combination with the axle shafts,

of gears thereon; a pair ofgear shafts arranged transversely of said axle shafts; pairs of gears onsaid' gear shafts through which said axle gears may be driven in either direction; a shifting mechanism therefor; pairs of ,ratchet clutch members through which said gears on said gear shafts are connected thereto; a driving shaft; a plurality of gears of.

difierent diameters s lined upon said driving shaft; means for shifting said gears on said drivi shaft; a pair of driven shafts arrange one at each side of said driving shaft and parallel thereto; combination universal and slip joints for connecting said driven shafts to said gear shafts; adjustable bearings for said driven shafts; connecting links for said bearings whereby they are adjusted in unison to throw them toward or from said driving shaft a plurality of gears of different diameters on sa1d driven shaftsadapted to .be brought into engagement with said gears on said driving shaft; and means for locking said reversing mechanism when said driven shafts are connected to said driving shaft. 15. The combination with the axle shafts,

of gears thereon; a pair of gear shafts arranged transversely of said axle shafts; pairs of gears on said gear shafts through which said axle gears may be driven in either direction; a shifting mechanism therefor; a driving shaft; a plurality of gears of different diameters s lined upon said driving shaft; means for s 'fting said gears on said driving shaft; a pair of driven shafts arranged one at each side of said driving shaft and parallel thereto; combination universal and slip joints for connecting said driven shafts to said gear shafts; adjustable bearings for said driven shafts; connecting links for said bearings whereby they are adjusted in unison to throw them toward or from said driving shaft; a plurality of gears of difierent diameters on said driven shafts adapted to be brought into engagement with said gears on said driving shaft; and means for locking said reversing mechanism when said driven shafts are connected to said driving shaft.

g: 16. The combination with the axle shafts,

- of gears thereon; af pair of gear shaftsja rangedjtransverselyj of said axlezshafts; pairs of gears on said gear shafts through which said axle gears may be driven in either direction; a shifting mechanism therefor; pairs of ratchet clutch members through which said gears on said gear shafts are connected thereto; a driving shaft; a plurality of gears of different diameters splined upon said driving shaft; means for shifting said gears on said driving shaft; a pair of driven shafts ar' ranged one at each side of said driving shaft and parallel thereto; combination universal and slip joints for connecting said driven shafts to said gear shafts; adjustable bearings for said driven shafts; connecting links for said bearings whereby they are adjusted in unison to throw them toward or from said driving shaft; and a plurality of gears of different diameters on said driven shafts adapted tobe brought into engagement with said gears on said driving shaft.

17. The combination with the axle shafts, of gears thereon; a pair of gear shafts ar ranged transversely of said axle shafts; airs of gears on said gear shafts through w 'oh said axle gears may be driven in either direc-i tion; a shifting mechanism therefor; a driv-- ing shaft; a plurality of gears of difierent diameters splined upon said driving shaft; means for shifting said gears on said driving shaft; a pair of driven shafts arranged one at each side .of said driving shaft and parallel thereto; combination universal and slip joints for connecting said driven shafts to said gear shafts; adjustable bearings for said driven shafts; connecting links for said bearings whereby they are adjusted in unison to throw them toward or from said driving shaft; and a plurality of gears of difierent diameters on said driven shafts adapted to be brought into engagement with said gears on said driving shaft.

18. The combination with a driving shaft, of a plurality of gears of different diameters splined upon said driving shaft; means for shifting said gears on sald drivingi shaft; a pair of driven shafts arranged one at each side of said driving shaft and parallel thereto; rotatable bearings in which said driven shafts are eccentrically arranged; connecting links for said bearings whereby they are adjusted in unison to throw them toward or from said driving shaft; and a plurality of gears of different diameters on said driven shafts adapted to be brought into engagement with said gears on said driving shaft.

19. The combination with a driving shaft, of a plurality of gears of difierent diameters splined upon said driving shaft; means for shifting said gears on said driving shaft; a pair of driven shafts arranged oneat each side of said driving shaft and arallel thereto; adjustable bearin s for'sai driven shafts; connecting links or said bearings whereby they are adjusted in unison to throw them toward or from said driving shaft; and a v shaft and parallel thereto; means for adjusting said driven shafts 1111111118011 to throw them toward or from said driving shaft; and a plurality of gears of different diameters on said driven shafts adapted to be brought into engagement with said gears on said driving shaft.

21. The combination with a driving shaft,

ted to be brought into of a plurality of gears of different ol'alneters upon said driving shaft; a pair of adjustably-supported driven shafts arranged one at each side of said driving shaft and parallel thereto; means for adjusting said driven shafts in unison to throw them toward or from said driving shaft; and a plurality of gears of different diameters on said driven shafts adapted to be brought into engagement w th said gears on said driving shaft;

In witness whereof, I have hereunto set my hand and seal in the presence of two wltnesses.

ALLEN P. BOYER. [L. 5.]

Witnesses:

LLOYD L. BURnIs,

MARTIN C. KEsLER. 

